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CVE Vulnerabilities

CVE-2026-4775

Integer Overflow or Wraparound

Published: Mar 24, 2026 | Modified: Jun 27, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
7.8 IMPORTANT
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-4775
CWEhttps://cwe.mitre.org/data/definitions/190.html

A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the putcontig8bitYCbCr44tile function by providing a specially crafted TIFF file. This flaw can lead to an out-of-bounds heap write due to incorrect memory pointer calculations, potentially causing a denial of service (application crash) or arbitrary code execution.

Weakness

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Affected Software

NameVendorStart VersionEnd Version
LibtiffLibtiff- (including)- (including)
Hardened_imagesRedhat- (including)- (including)
Debian_linuxDebian11.0 (including)11.0 (including)
Enterprise_linuxRedhat6.0 (including)6.0 (including)
Enterprise_linuxRedhat7.0 (including)7.0 (including)
Enterprise_linuxRedhat8.0 (including)8.0 (including)
Enterprise_linuxRedhat9.0 (including)9.0 (including)
Enterprise_linuxRedhat10.0 (including)10.0 (including)
Red Hat Enterprise Linux 10RedHatlibtiff-0:4.6.0-6.el10_1.3*
Red Hat Enterprise Linux 10RedHatlibtiff-0:4.6.0-8.el10_2.1*
Red Hat Enterprise Linux 10.0 Extended Update SupportRedHatlibtiff-0:4.6.0-6.el10_0.3*
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRedHatcompat-libtiff3-0:3.9.4-12.el7_9.2*
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRedHatlibtiff-0:4.0.3-35.el7_9.2*
Red Hat Enterprise Linux 8RedHatlibtiff-0:4.0.9-37.el8_10*
Red Hat Enterprise Linux 8RedHatcompat-libtiff3-0:3.9.4-15.el8_10*
Red Hat Enterprise Linux 8RedHatmingw-libtiff-0:4.0.9-4.el8_10*
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRedHatlibtiff-0:4.0.9-18.el8_4.2*
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRedHatcompat-libtiff3-0:3.9.4-13.el8_4.2*
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRedHatlibtiff-0:4.0.9-18.el8_4.2*
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRedHatcompat-libtiff3-0:3.9.4-13.el8_4.2*
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRedHatlibtiff-0:4.0.9-21.el8_6.2*
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRedHatcompat-libtiff3-0:3.9.4-13.el8_6.2*
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRedHatlibtiff-0:4.0.9-21.el8_6.2*
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRedHatcompat-libtiff3-0:3.9.4-13.el8_6.2*
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRedHatlibtiff-0:4.0.9-21.el8_6.2*
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRedHatcompat-libtiff3-0:3.9.4-13.el8_6.2*
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRedHatlibtiff-0:4.0.9-29.el8_8.2*
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRedHatcompat-libtiff3-0:3.9.4-13.el8_8.2*
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRedHatlibtiff-0:4.0.9-29.el8_8.2*
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRedHatcompat-libtiff3-0:3.9.4-13.el8_8.2*
Red Hat Enterprise Linux 9RedHatlibtiff-0:4.4.0-15.el9_7.3*
Red Hat Enterprise Linux 9RedHatlibtiff-0:4.4.0-18.el9_8*
Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRedHatlibtiff-0:4.2.0-3.el9_0.3*
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRedHatlibtiff-0:4.4.0-8.el9_2.5*
Red Hat Enterprise Linux 9.4 Extended Update SupportRedHatlibtiff-0:4.4.0-12.el9_4.5*
Red Hat Enterprise Linux 9.6 Extended Update SupportRedHatlibtiff-0:4.4.0-13.el9_6.4*
Red Hat AI Inference Server 3.2RedHatrhaiis/model-opt-cuda-rhel9:1780681984*
Red Hat AI Inference Server 3.3RedHatrhaiis/model-opt-cuda-rhel9:1782352950*
GdalUbuntuesm-apps/xenial*
TiffUbuntuesm-infra/xenial*

Potential Mitigations

  • Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • If possible, choose a language or compiler that performs automatic bounds checking.
  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
  • Use libraries or frameworks that make it easier to handle numbers without unexpected consequences.
  • Examples include safe integer handling packages such as SafeInt (C++) or IntegerLib (C or C++). [REF-106]
  • Perform input validation on any numeric input by ensuring that it is within the expected range. Enforce that the input meets both the minimum and maximum requirements for the expected range.
  • Use unsigned integers where possible. This makes it easier to perform validation for integer overflows. When signed integers are required, ensure that the range check includes minimum values as well as maximum values.
  • Understand the programming language’s underlying representation and how it interacts with numeric calculation (CWE-681). Pay close attention to byte size discrepancies, precision, signed/unsigned distinctions, truncation, conversion and casting between types, “not-a-number” calculations, and how the language handles numbers that are too large or too small for its underlying representation. [REF-7]
  • Also be careful to account for 32-bit, 64-bit, and other potential differences that may affect the numeric representation.

References

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